Sites get stuck at page 2-5 and don't move for a long time no matter what you do. I have also experienced the same thing on my new sites. No matter how many high PR links with good metrics i throw at the sites. They don't respond at all.

The nice part is that in this thread, they are documenting everything. Showing the site being "stuck" and then slowly increasing but not at the speeds most this black hat SEOs expect.